@article{AsarStapenhorst2020,
  author    = {Asar, Hande and Stapenhorst, Carolin},
  title     = {Zvi Hecker: Drawing on drawing},
  series = {Archives of Design Research},
  volume    = {33},
  journal   = {Archives of Design Research},
  number    = {3},
  publisher = {Korean Society of Design Science},
  address   = {Seongnam},
  issn      = {1226-8046},
  doi       = {10.15187/adr.2020.08.33.3.45},
  pages     = {45 -- 53},
  year      = {2020},
  abstract  = {Background: Architectural representation, nurtured by the interaction between design thinking and design action, is inherently multi-layered. However, the representation object cannot always reflect these layers. Therefore, it is claimed that these reflections and layerings can gain visibility through 'performativity in personal knowledge', which basically has a performative character. The specific layers of representation produced during the performativity in personal knowledge permit insights about the 'personal way of designing' [1]. Therefore, the question, 'how can these layered drawings be decomposed to understand the personal way of designing', can be defined as the beginning of the study. On the other hand, performativity in personal knowledge in architectural design is handled through the relationship between explicit and tacit knowledge and representational and non-representational theory. To discuss the practical dimension of these theoretical relations, Zvi Hecker's drawing of the Heinz-Galinski-School is examined as an example. The study aims to understand the relationships between the layers by decomposing a layered drawing analytically in order to exemplify personal ways of designing. Methods: The study is based on qualitative research methodologies. First, a model has been formed through theoretical readings to discuss the performativity in personal knowledge. This model is used to understand the layered representations and to research the personal way of designing. Thus, one drawing of Hecker's Heinz-Galinski-School project is chosen. Second, its layers are decomposed to detect and analyze diverse objects, which hint to different types of design tools and their application. Third, Zvi Hecker's statements of the design process are explained through the interview data [2] and other sources. The obtained data are compared with each other. Results: By decomposing the drawing, eleven layers are defined. These layers are used to understand the relation between the design idea and its representation. They can also be thought of as a reading system. In other words, a method to discuss Hecker's performativity in personal knowledge is developed. Furthermore, the layers and their interconnections are described in relation to Zvi Hecker's personal way of designing. Conclusions: It can be said that layered representations, which are associated with the multilayered structure of performativity in personal knowledge, form the personal way of designing.},
  language  = {en}
}
@article{GrosshauserPettrak2023,
  author    = {Großhauser, Christian and Pettrak, J{\"u}rgen},
  title     = {Die Rolle des Wasserstoffs in der Abwasserbehandlung},
  series = {Wasser und Abfall},
  journal   = {Wasser und Abfall},
  number    = {7/8},
  publisher = {Springer Fachmedien},
  address   = {Wiesbaden},
  issn      = {1436-9095},
  doi       = {10.1007/s35152-023-1444-4},
  year      = {2023},
  abstract  = {Die Bereitstellung von nachhaltig erzeugtem Wasserstoff als Energietr{\"a}ger und Rohstoff ist eine wichtige Schl{\"u}sseltechnologie sowohl als Ersatz f{\"u}r fossile Energietr{\"a}ger, aber auch als Produkt im Zusammenhang mit Kreislaufprozessen. In der Abwasserbehandlung bestehen verschiedene M{\"o}glichkeiten Wasserstoff herzustellen. Mehrere Wege, m{\"o}gliche Synergien, aber auch deren Nachteile werden vorgestellt.},
  language  = {de}
}
@article{Raatschen1987,
  author    = {Raatschen, Hans-J{\"u}rgen},
  title     = {Fokussierung von Spannungswellen in einer krummlinig berandeten Scheibe},
  series = {ZAMM : Zeitschrift f{\"u}r Angewandte Mathematik und Mechanik},
  volume    = {67},
  journal   = {ZAMM : Zeitschrift f{\"u}r Angewandte Mathematik und Mechanik},
  number    = {4},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1521-4001},
  doi       = {10.1002/zamm.19870670406},
  pages     = {T230 -- T231},
  year      = {1987},
  language  = {de}
}
@article{RieplPettrakFaulstichetal.2010,
  author    = {Riepl, Herbert Matthias and Pettrak, J{\"u}rgen and Faulstich, Martin and Herrmann, Wolfgang Anton},
  title     = {Self metathesis of fatty alcohols and amines to provide monomers for polyester and polyamide products},
  series = {Macromolecular Symposia},
  volume    = {293},
  journal   = {Macromolecular Symposia},
  number    = {1},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1521-3900 (eISSN)},
  doi       = {10.1002/masy.200900041},
  pages     = {39 -- 42},
  year      = {2010},
  abstract  = {Self metathesis of oleochemicals offers a variety of bifunctional compounds, that can be used as monomer for polymer production. Many precursors are in huge scales available, like oleic acid ester (biodiesel), oleyl alcohol (tensides), oleyl amines (tensides, lubricants). We show several ways to produce and separate and purify C18-α,ω-bifunctional compounds, using Grubbs 2nd Generation catalysts, starting from technical grade educts.},
  language  = {en}
}
@article{UysalFiratCreutzetal.2022,
  author    = {Uysal, Karya and Firat, Ipek Serat and Creutz, Till and Aydin, Inci Cansu and Artmann, Gerhard and Teusch, Nicole and Temiz Artmann, Ayseg{\"u}l},
  title     = {A novel in vitro wound healing assay using free-standing, ultra-thin PDMS membranes},
  series = {membranes},
  volume    = {2023},
  journal   = {membranes},
  number    = {13(1)},
  publisher = {MDPI},
  address   = {Basel},
  doi       = {10.3390/membranes13010022},
  pages     = {Artikel 22},
  year      = {2022},
  abstract  = {Advances in polymer science have significantly increased polymer applications in life sciences. We report the use of free-standing, ultra-thin polydimethylsiloxane (PDMS) membranes, called CellDrum, as cell culture substrates for an in vitro wound model. Dermal fibroblast monolayers from 28- and 88-year-old donors were cultured on CellDrums. By using stainless steel balls, circular cell-free areas were created in the cell layer (wounding). Sinusoidal strain of 1 Hz, 5\% strain, was applied to membranes for 30 min in 4 sessions. The gap circumference and closure rate of un-stretched samples (controls) and stretched samples were monitored over 4 days to investigate the effects of donor age and mechanical strain on wound closure. A significant decrease in gap circumference and an increase in gap closure rate were observed in trained samples from younger donors and control samples from older donors. In contrast, a significant decrease in gap closure rate and an increase in wound circumference were observed in the trained samples from older donors. Through these results, we propose the model of a cell monolayer on stretchable CellDrums as a practical tool for wound healing research. The combination of biomechanical cell loading in conjunction with analyses such as gene/protein expression seems promising beyond the scope published here.},
  language  = {en}
}
@phdthesis{Pettrak2010,
  author    = {Pettrak, J{\"u}rgen},
  title     = {Nutzung nachwachsender Rohstoffe bei der Herstellung thermoplastischer Elastomere aus Folgeprodukten der Olefinmetathese},
  publisher = {Technische Universit{\"a}t M{\"u}nchen},
  address   = {M{\"u}nchen},
  pages     = {137 Seiten},
  year      = {2010},
  abstract  = {Metathese von {\"O}ls{\"a}ure und Derivaten ist ein interessanter Weg f{\"u}r die Synthese bifunktioneller Verbindungen aus nachwachsenden Rohstoffen. Verwendet wurden Ru-Katalysatoren der zweiten Generation, welche eine hohe Toleranz gegen{\"u}ber funktionellen Gruppen und Verunreinigungen aufweisen. Trotz des Einsatzes technischer Edukte waren Umsetzungen mit niedrigen Katalysatormengen (0.001 - 0.01 mol-\%) m{\"o}glich, mit Ausbeuten entsprechend der Literatur. Kreuzmetathesen erm{\"o}glichten variable Kettenl{\"a}ngen und Funktionalit{\"a}ten der Monomere, die Produktgewinnung ist jedoch aufw{\"a}ndig. Selbstmetathese lieferte C18-bifunktionelle Verbindungen, welche einfach durch Destillation oder Kristallisation isoliert werden k{\"o}nnen. Neben der katalystischen Umsetzung wurde auch die Produktgewinnung untersucht und f{\"u}r ausgew{\"a}hlte Produkte auch im gr{\"o}ßeren Maßstab durchgef{\"u}hrt.},
  language  = {de}
}
@book{Heuermann2024,
  author    = {Heuermann, Holger},
  title     = {Microwave technology: field simulation, non-linear circuit technology, components and subsystems, plasma technology, antennas and propagation},
  publisher = {Springer},
  address   = {Wiesbaden},
  isbn      = {978-3-658-45685-6},
  doi       = {10.1007/978-3-658-45686-3},
  pages     = {XII, 391 Seiten},
  year      = {2024},
  abstract  = {The book covers various numerical field simulation methods, nonlinear circuit technology and its MF-S- and X-parameters, as well as state-of-the-art power amplifier techniques. It also describes newly presented oscillators and the emerging field of GHz plasma technology. Furthermore, it addresses aspects such as waveguides, mixers, phase-locked loops, antennas, and propagation effects, in combination with the bachelor's book 'High-Frequency Engineering,' encompassing all aspects related to the current state of GHz technology.},
  language  = {en}
}
@misc{Huening2024,
  author    = {H{\"u}ning, Felix},
  title     = {Positionssensorvorrichtung},
  year      = {2024},
  abstract  = {Die Erfindung betrifft eine Positionssensorvorrichtung zur Bestimmung einer Absolutposition eines beweglichen ersten Teils relativ zu einem ortsfesten zweiten Teil mit einem mit dem beweglichen ersten Teil gekoppelter Codek{\"o}rper, der dazu eingerichtet ist, eine Codespur mit einer Mehrzahl von in Spurrichtung aufeinanderfolgenden Codeelementen zu enthalten zur Bildung eines Codewortes, mit einer magnetischen Detektionseinrichtung zur Detektion der Codespur, wobei die Detektionseinrichtung zum einen an dem Codek{\"o}rper befestigte und entlang der Spurrichtung in einem solchen Abstand gegenpolig zueinander angeordnete Permanentmagneten aufweist, dass der Abstand mit einer vorgegebenen L{\"a}nge der jeweiligen Codeelemente {\"u}bereinstimmt, und zum anderen eine Anzahl von ortsfest und quer zu dem Codek{\"o}rper versetzt angeordnete Wiegandsensoren aufweist, wobei der Abstand des Wiegandsensors zu einer Erstreckungsebene der Permanentmagneten derart gew{\"a}hlt ist, dass bei {\"U}berdeckung des Wiegandsensors durch den Permanentmagneten ein Wiegandpuls in dem Wiegandsensor induziert wird.},
  language  = {de}
}
@book{Heuermann2023,
  author    = {Heuermann, Holger},
  title     = {Mikrowellentechnik : Feldsimulation, nichtlineare Schaltungstechnik, Komponenten und Subsysteme, Plasmatechnik, Antennen und Ausbreitung},
  edition   = {2. Auflage},
  publisher = {Springer Vieweg},
  address   = {Wiesbaden},
  isbn      = {978-3-658-41286-9},
  doi       = {10.1007/978-3-658-41287-6},
  pages     = {XVI, 394 Seiten},
  year      = {2023},
  abstract  = {Das Lehrbuch behandelt alle Aspekte, die den aktuellen Stand der GHz-Technik betreffen. Das Buch behandelt die verschiedenen numerischen Feldsimulationsverfahren. Mit vielen modernen Themen.},
  language  = {de}
}
@misc{BrotsackPettrak2014,
  author    = {Brotsack, Raimund and Pettrak, J{\"u}rgen},
  title     = {Mikrobiologische Biomethan-Erzeugung mit Wasserstoff aus der thermischen Vergasung von kohlenstoffhaltigen Einsatzstoffen},
  year      = {2014},
  abstract  = {Die vorliegende Erfindung betrifft ein energieeffizientes, umweltfreundliches und kosteng{\"u}nstiges, vorzugsweise kontinuierliches Verfahren zur Herstellung von Biomethan aus kohlenstoffhaltigen Einsatzstoffen durch die Kombination der thermischen Vergasung mit mikrobiologischer Methan-Erzeugung.},
  language  = {de}
}